JPH0434485B2 - - Google Patents

Info

Publication number
JPH0434485B2
JPH0434485B2 JP59016198A JP1619884A JPH0434485B2 JP H0434485 B2 JPH0434485 B2 JP H0434485B2 JP 59016198 A JP59016198 A JP 59016198A JP 1619884 A JP1619884 A JP 1619884A JP H0434485 B2 JPH0434485 B2 JP H0434485B2
Authority
JP
Japan
Prior art keywords
molding material
dividing device
frame
lower mold
material dividing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP59016198A
Other languages
Japanese (ja)
Other versions
JPS59165624A (en
Inventor
Munku Edomunto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BERUTSUARITO AG UNTO CO
Original Assignee
BERUTSUARITO AG UNTO CO
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BERUTSUARITO AG UNTO CO filed Critical BERUTSUARITO AG UNTO CO
Publication of JPS59165624A publication Critical patent/JPS59165624A/en
Publication of JPH0434485B2 publication Critical patent/JPH0434485B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N5/00—Manufacture of non-flat articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N5/00—Manufacture of non-flat articles
    • B27N5/02—Hollow articles

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Moulding By Coating Moulds (AREA)
  • Compressor (AREA)
  • Mechanical Operated Clutches (AREA)
  • Reinforced Plastic Materials (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)

Abstract

In an arrangement for and a method of producing shaped parts of a non-swellable mixture of fibers and heat-hardenable resin, a pressing mass divider is introduced into lower pressing tool during filling of the mixture.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、圧縮すべき成形材料を収容するキヤ
ビテイを有する成形用下金型と、圧縮すべき成形
材料を充填する間下金型のキヤビテイ中へ突出す
る材料分割装置が設けられている上金型を有す
る、繊維と熱硬化可能のプラスチツクの非塑性流
動の成形材料から薄壁の成形品を製造する装置に
関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a lower molding mold having a cavity for accommodating a molding material to be compressed, and a method for filling the molding material into the cavity of the lower mold during filling with the molding material to be compressed. The present invention relates to an apparatus for producing thin-walled molded articles from non-plastically flowing molding materials of fibers and thermosetting plastics, having an upper mold provided with a projecting material dividing device.

本発明は、成形品の少なくとも２つの成分が互
いに急勾配の角をなすような比較的薄壁の成形品
の製造に関する。このような成形品の製造のため
には、圧縮成形用の下金型と上金型とは相応する
くぼみないしは突起を備えている。成形材料は、
必要な量および充填高さで、下金型中へ充填され
る。次いで上金型が下降する場合、成形材料は殊
に下金型のくぼみ中で急勾配の側面へ圧縮され
る。しかし、これはしばしば実施することができ
ない。それというのも充填された成形材料はその
繊維状構造のための複合体を形成し、これは進入
する上金型によつてもはや分離できないからであ
る。 The present invention relates to the production of relatively thin-walled molded articles in which at least two components of the molded article form steep angles with respect to each other. For the production of such molded articles, the lower mold and the upper mold for compression molding are provided with corresponding depressions or projections. The molding material is
The required amount and filling height is filled into the lower mold. When the upper mold is then lowered, the molding material is compressed, especially in the recess of the lower mold, onto the steep sides. However, this is often not possible. This is because the filled molding compound forms a composite due to its fibrous structure, which can no longer be separated by the advancing upper mold.

これにより過大量の成形材料が下金型のくぼみ
の底に推積し、成形材料量の大きい成形品が生成
することになる。これから、再び製造された成形
品の不均一な密度、従つて不均一な強さが生じ
る。 As a result, an excessive amount of molding material accumulates at the bottom of the recess of the lower mold, resulting in a molded product containing a large amount of molding material. This again results in non-uniform density and therefore non-uniform strength of the molded parts produced.

このため、下金型のキヤビテイ内でほぼ中心に
キヤビテイの底へ移動可能の、ばね負荷されたプ
ランジヤーが配置されている装置が既に公知とな
つている（ドイツ連邦共和国特許出願公開第
3045702号明細書）。 For this purpose, devices are already known in which a spring-loaded plunger is arranged approximately centrally in the cavity of the lower mold and is movable to the bottom of the cavity (German patent application no.
3045702 specification).

この公知装置は、プランジヤーがそれぞれのキ
ヤビテイ内に、圧縮すべき材料から何も、プラン
ジヤーが圧縮の際に下降する空間中へ入り得ない
ように密封配置されていなければならないが、そ
れにも拘らず常にプランジヤーの軽快な連動性は
確保されていなければならないため、費用がかか
りかつ恐らく故障しやすい。 This known device nevertheless requires that the plungers be arranged in a sealed manner in their respective cavities so that nothing from the material to be compacted can enter into the space into which the plungers descend during compaction. This is expensive and possibly prone to failure, as the plunger must always maintain smooth interlocking.

発明が解決しようとする課題 従つて、本発明の課題は、簡単に組立てられ簡
単に取扱でき、それにも拘らず圧縮する際に圧縮
すべき成形材料の均一な圧縮が可能である、非塑
性流動の成形材料から成形品を製造するための装
置を提供することである。Problem to be Solved by the Invention It is therefore an object of the invention to create a non-plastic flowing material which is easy to assemble and handle, and which nevertheless allows uniform compression of the molding material to be compressed during compression. An object of the present invention is to provide an apparatus for manufacturing a molded article from a molding material.

課題を解決するための手段 この課題は本発明によれば、その形がキヤビテ
イの形に適合された成形材料分割装置がフレーム
に固定され、該フレームと共に成形材料を充填す
る前、上金型と下金型との間で、成形材料装置が
キヤビテイ中へ突出するように導入可能でかつ下
金型に向けて下降可能であることによつて達成さ
れる。Means for Solving the Problem According to the invention, a molding material dividing device whose shape is adapted to the shape of the cavity is fixed to a frame, and together with the frame, before filling the molding material, the molding material dividing device is connected to the upper mold. This is achieved in that, between the lower mold and the molding material device, it can be introduced so as to project into the cavity and can be lowered towards the lower mold.

本発明による装置では、成形材料分割装置は圧
縮すべき成形材料を充填する前に下金型中へ装入
される。圧縮すべき成形材料を充填する間または
充填した後、成形材料分割装置は、圧縮方向とゼ
ロとは異なる角を形成する１つまたは幾つかの方
向に振動を実施することができる。必要量の圧縮
すべき成形材料が下金型中へ充填された後、上金
型が下金型中へ進入し、成形品を所望どおりに密
度の変動なしに圧縮成形する前に、材料分割装置
が下金型から取り除かれる。 In the device according to the invention, the molding material dividing device is inserted into the lower mold before it is filled with the molding material to be compressed. During or after filling the molding material to be compressed, the molding material dividing device can carry out vibrations in one or several directions forming an angle different from zero with the direction of compression. After the required amount of molding material to be compressed has been filled into the lower mold, the upper mold enters the lower mold and the material is divided before compression molding the molded product as desired without density variation. The device is removed from the lower mold.

新規装置は、常法圧縮成形および／または熱間
圧縮成形の際に使用することができる。 The new equipment can be used during conventional compression molding and/or hot compression molding.

実施例 本発明の他の有利な実施形は、特許請求の範囲
第２項から第６項に含まれている。次に本発明を
第１図ないし第７図につき詳述する。Embodiments Further advantageous embodiments of the invention are contained in claims 2 to 6. The invention will now be described in detail with reference to FIGS. 1 to 7.

第１図は実施例として本発明の装置により製造
しうる成形品１を示す。この成形品１は、たとえ
ば電子オーブン、洗たく機のような直方体形装置
を包装する際、縁を保護するために必要となるア
ングルバーである。第１図はアングルバーの断面
を示し、このバーは長さ方向には不変の断面もつ
て図面の平面と垂直に走る。 FIG. 1 shows, as an example, a molded article 1 that can be produced by the apparatus of the invention. This molded article 1 is an angle bar that is necessary to protect the edges when packaging rectangular parallelepiped devices such as electronic ovens and washing machines. FIG. 1 shows a cross-section of an angle bar, which runs perpendicular to the plane of the drawing with a constant cross-section in the longitudinal direction.

しかしこのようなアングルバー１は一般に個々
の成形品として製造されず、圧縮した成形品は第
２図に示すように多数の部材の繰返し配置からな
り、これから２で示す線で切離して個々のアング
ルバー１が得られる。 However, such an angle bar 1 is generally not manufactured as an individual molded product, and the compressed molded product consists of a repeated arrangement of many members as shown in FIG. Bar 1 is obtained.

第３図は、第２図に示されているような成形品
を製造するために使用する本発明による成形材料
分割装置を有するプレスを示す。プレスは圧縮成
形すべき成形品の形に応じて形成された下金型３
を有する。第３図から明らかなように、下金型３
の形は非常に急勾配の斜面を有し、この斜面は直
接または平らな面を介して互いに移行する。第３
図には、充填工程の間のプレスを示し、すなわち
同様に圧縮すべき成形品の形に応じて成形された
上金型４はその上端位置にある。 FIG. 3 shows a press with a molding material dividing device according to the invention used for producing molded articles as shown in FIG. The press uses a lower mold 3 formed according to the shape of the molded product to be compression molded.
has. As is clear from Fig. 3, the lower mold 3
The shape has very steep slopes, which transition into each other directly or through flat surfaces. Third
The figure shows the press during the filling process, ie the upper mold 4, which is also shaped according to the shape of the moldings to be pressed, is in its upper end position.

充填工程の間、成形材料分割装置５は上金型４
と下金型３との間に存在する。第３図に示す実施
例の場合、成形材料分割装置は並列に配置した多
数のナイフ状突出体６を互いに平行にたとえば線
７によつて略示したフレームに固定してなる。ナ
イフ状突出体６は、必要の場合にはむしろ下金型
３のくぼみの底にまで突出しうる。成形材料分割
装置６がプレス内に位置している場合、成形材料
はたとえば下金型３中へ線８まで充填され、充填
する間または充填した後、成形材料分割装置は振
動させることもできる。 During the filling process, the molding material dividing device 5
and the lower mold 3. In the embodiment shown in FIG. 3, the molding material dividing device consists of a number of knife-shaped protrusions 6 arranged in parallel and fixed parallel to one another on a frame schematically indicated, for example, by line 7. In the embodiment shown in FIG. The knife-like protrusion 6 can even protrude to the bottom of the recess of the lower mold 3 if necessary. If the molding material dividing device 6 is located in the press, the molding material is filled, for example, into the lower mold 3 up to the line 8, and during or after filling, the molding material dividing device can also be vibrated.

成形材料は、リグノセルロース含有繊維、細砕
し、乾燥した木材チツプ、バガスなどのような繊
維と、メラミン樹脂、尿素ホルムアルデヒド樹脂
またはフエノールホルムアルデヒド樹脂のような
熱硬化性合成樹脂からなる。しかし上記繊維の代
りに、ガラス繊維などのような他の材料の繊維を
単独または互いに混合して使用し、それに適当な
とくに有機結合剤を添加することもできる。 The molding material consists of fibers such as lignocellulose-containing fibers, ground and dried wood chips, bagasse, etc. and thermosetting synthetic resins such as melamine resins, urea-formaldehyde resins or phenol-formaldehyde resins. However, instead of the above-mentioned fibers, it is also possible to use fibers of other materials, such as glass fibers, etc., alone or mixed with one another, to which suitable, in particular organic binders are added.

成形材料を下金型に充填し、場合により成形材
料分割装置を振動させた後、成形材料分割装置を
上金型と下金型との間の空間から取除く。その
後、上金型を下金型へ下降させる、その際１段プ
レス法であれば成形品は完全に圧縮成形される。 After filling the lower mold with molding material and optionally vibrating the molding material dividing device, the molding material dividing device is removed from the space between the upper mold and the lower mold. Thereafter, the upper mold is lowered to the lower mold, and at this time, if the one-stage press method is used, the molded product is completely compression molded.

成形品を圧縮成形中のプレスは第４図に示され
ている。その後、上金型は再び上昇し、成形品は
プレスから取出される。 The press during compression molding of the molded article is shown in FIG. Thereafter, the upper mold is raised again and the molded product is removed from the press.

第３図および第４図におけるプレスは、下金型
３が固定配置で、上金型４が垂直に上方から下方
へ動くように構成されている。しかし原則的には
いずれの金型が上方から対応する金型に向かつて
成形材料に作用するかは重要ではない。下金型を
上方へ押上げるかまたは双方の金を向合つて動か
すことも可能である。 The press in FIGS. 3 and 4 is constructed such that the lower die 3 is in a fixed arrangement and the upper die 4 is movable vertically from above to below. However, in principle it is not important which mold is directed from above towards the corresponding mold and acts on the molding material. It is also possible to push the lower mold upwards or to move both molds towards each other.

同様、プレスにより他の形の成形品を製造する
ことも可能である。それで、成形品が急勾配の壁
を有する多数のポツト状くぼみを互いにつなぎ合
わせてなり、該壁を間に配置された多少とも平ら
な面によつて間隔保持することも考えられる。こ
のような成形品はたとえば卵パツクの形を有す
る。 It is likewise possible to produce molded articles of other shapes by pressing. It is therefore also conceivable for the molding to consist of a number of pot-shaped recesses with steeply sloped walls joined together, the walls being spaced apart by more or less flat surfaces arranged between them. Such molded articles have, for example, the shape of an egg carton.

このような成形品を製造するための装置は原則
的には第３図から認められる装置とまつたく同様
に構成されている。ただし、金型のくぼみ中へ突
入する成形材料分割装置は、適当な形、たとえば
ピラミツド形（第５図）、交差ナイフの形（第６
図）または円錐形（第７図）を有しなければなら
ない。第５図〜第７図はこのような成形材料分割
装置の下方からの平面図である。成形材料分割装
置の任意の他の形も考えられるが、すべての形は
圧縮すべき成形品の形と多少なりとも非常に類似
している。 The apparatus for producing such molded articles is in principle constructed exactly like the apparatus that can be seen in FIG. However, the molding material dividing device that protrudes into the cavity of the mold may have a suitable shape, such as a pyramid shape (Fig. 5) or a cross-knife shape (Fig. 6).
(Figure 7) or conical shape (Figure 7). 5 to 7 are plan views from below of such a molding material dividing device. Any other shape of the molding material dividing device is also conceivable, but all shapes are more or less very similar to the shape of the molded article to be compressed.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本発明の装置により製造しうる成形品
の断面図、第２図は第１図による成形品の繰返し
配置の断面図、第３図は、本発明による成形材料
分割装置を有する第２図による成形品を製造する
ためのプレスの断面図であり、第４図は、圧縮工
程の終りにおける第３図によるプレスの断面図で
あり、第５図は、ピラミツド形の成形材料分割装
置の下面の平面図であり、第６図は、交差ナイフ
形の成形材料分割装置の下面の平面図であり、第
７図は、円錐形の成形材料分割装置の下面の平面
図である。 １……成形品、３……下金型、４……上金型、
６……突出体。 FIG. 1 is a cross-sectional view of a molded article that can be produced by the apparatus of the present invention, FIG. 2 is a cross-sectional view of a repeating arrangement of the molded article according to FIG. 1, and FIG. 2 is a cross-sectional view of the press for producing the molded article according to FIG. 2; FIG. 4 is a cross-sectional view of the press according to FIG. 3 at the end of the compression process; and FIG. 5 is a pyramid-shaped molding material dividing device. FIG. 6 is a plan view of the bottom of the intersecting knife-shaped molding material dividing device, and FIG. 7 is a plan view of the bottom of the conical molding material dividing device. 1...Molded product, 3...Lower mold, 4...Upper mold,
6...Protruding body.

Claims (1)

【特許請求の範囲】 １ 圧縮すべき成形材料を収容するキヤビテイを
有する下金型３と、圧縮すべき成形材料を充填す
る間下金型３のキヤビテイ中へ突出する成形材料
分割装置６を備えている上金型４を有する、繊維
と熱硬化性プラスチツクの非塑性流動の成形材料
から薄壁成形品を製造する装置において、その形
がキヤビテイの形に適合している成形材料分割装
置６がフレーム７に固定され、このフレームと共
に成形材料を充填する前は、上金型４と下金型３
との間で、成形材料分割装置６がキヤビテイ中へ
突出するように導入可能でかつ下金型３に向けて
下降可能であることを特徴とする薄壁成形品の製
造装置。 ２ 成形材料分割装置が、フレーム７に互いに平
行に固定されたナイフ状体として構成されてい
る。特許請求の範囲第１項記載の装置。 ３ 成形材料分割装置が、フレーム７に固定され
た、少なくとも１つの交差ナイフ状突出体からな
つている、特許請求の範囲第１項記載の装置。 ４ 成形材料分割装置が、フレーム７に固定され
た、少なくとも１つのピラミツド状体からなつて
いる、特許請求の範囲第１項記載の装置。 ５ 成形材料分割装置が、フレーム７に固定され
た少なくとも１つの円錐状体からなつている、特
許請求の範囲第１項記載の装置。 ６ 成形材料分割装置を有するフレーム７が、該
分割装置を、圧縮方向とゼロとは異なる角を形成
する方向に不断の反覆運動を実施する位置へずら
す付加的駆動装置を備えている、特許請求の範囲
第２項から第５項までのいずれか１項記載の装
置。[Scope of Claims] 1. A lower mold 3 having a cavity for accommodating a molding material to be compressed, and a molding material dividing device 6 protruding into the cavity of the lower mold 3 during filling with the molding material to be compressed. In an apparatus for producing thin-walled molded products from a non-plastically flowing molding material of fibers and thermosetting plastic, the molding material dividing device 6 has a molding material dividing device 6 whose shape is adapted to the shape of the cavity. It is fixed to the frame 7, and before being filled with molding material together with this frame, the upper mold 4 and the lower mold 3
An apparatus for producing a thin-walled molded product, characterized in that a molding material dividing device 6 can be introduced into the cavity so as to protrude between the two and can be lowered toward the lower mold 3. 2. The molding material dividing device is constructed as a knife-shaped body fixed parallel to one another on the frame 7. An apparatus according to claim 1. 3. Device according to claim 1, characterized in that the molding material dividing device consists of at least one intersecting knife-shaped projection fixed to the frame 7. 4. Device according to claim 1, characterized in that the molding material dividing device consists of at least one pyramid-shaped body fixed to the frame 7. 5. Device according to claim 1, characterized in that the molding material dividing device consists of at least one conical body fixed to the frame 7. 6. Claim in which the frame 7 with the molding material dividing device is provided with an additional drive for displacing the dividing device into a position in which it performs a continuous reciprocating movement in a direction forming an angle different from zero with the direction of compression. The device according to any one of the ranges 2 to 5.
JP59016198A 1983-02-05 1984-02-02 Device for manufacturing molding member Granted JPS59165624A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP83101104A EP0115552B1 (en) 1983-02-05 1983-02-05 Apparatus for manufacturing moulded articles
EP83101104.4 1983-02-05

Publications (2)

Publication Number Publication Date
JPS59165624A JPS59165624A (en) 1984-09-18
JPH0434485B2 true JPH0434485B2 (en) 1992-06-08

Family

ID=8190280

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59016198A Granted JPS59165624A (en) 1983-02-05 1984-02-02 Device for manufacturing molding member

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US (2) US4544344A (en)
EP (1) EP0115552B1 (en)
JP (1) JPS59165624A (en)
AT (1) ATE30532T1 (en)
AU (1) AU569499B2 (en)
CA (1) CA1221215A (en)
DE (1) DE3374283D1 (en)
ES (1) ES529464A0 (en)
IN (1) IN162424B (en)

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US4751034A (en) * 1986-03-14 1988-06-14 Delong Edward A Method of molding using dissociated lignocellulosic material and the product so produced
SE461775B (en) * 1986-04-24 1990-03-26 Swedoor Ab PROCEDURE FOR MANUFACTURE OF DEEP SHAPED DISC
ATE152031T1 (en) * 1993-08-26 1997-05-15 Werzalit Ag & Co DEVICE FOR USE WHEN FILLING A MIXTURE INTO A PRESSING TOOL
US6849141B2 (en) 1998-09-15 2005-02-01 Batesville Services, Inc. Casket lid and method of making same
US6243931B1 (en) 1998-09-15 2001-06-12 Batesville Services, Inc. Casket lid and method and making same
WO2009121016A2 (en) * 2008-03-28 2009-10-01 Noble Environmental Technologies Corporation Engineered molded fiberboard panels, methods of making the panels, and products fabricated from the panels
US7967595B1 (en) 2009-04-02 2011-06-28 John Paul Schofield Machine and method for reshaping multiple plastic bottles into rock shapes

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DE1092183B (en) * 1955-10-05 1960-11-03 G Gassareck Fa Method and device for pressing pyramidal or truncated cone-shaped hollow bodies closed on one side from a dry, powdery or small-grained molding compound, e.g. If necessary, short wood chips or the like mixed with a binder.
DE1254353B (en) * 1959-10-16 1967-11-16 Interbygg Shwan & Co Manufacture of building panels by curing polyester molding compounds
US3340574A (en) * 1965-07-22 1967-09-12 Kirkhof Mfg Corp Universal forming press
US3518334A (en) * 1968-10-01 1970-06-30 Kirkhof Mfg Corp Method of forming three dimensional plastic articles
BE790805A (en) * 1971-12-10 1973-02-15 Eternit Nv DEVICE FOR MANUFACTURING SHAPE BODIES FROM FIBER MATERIAL
US4061813A (en) * 1974-06-11 1977-12-06 The United States Of America As Represented By The Secretary Of Agriculture Combination sheathing support - member building product
SU589065A1 (en) * 1974-12-23 1978-01-25 Ленинградский зональный научно-исследовательский и проектный институт типового и экспериментального проектирования жилых и общественных зданий Moulding device for compacting mixtures and mortars
DE2534774A1 (en) * 1975-08-04 1977-02-17 Inselkammer Hans Press mould for prods. of wood chips and fibres - esp. mouldings with very uneven contours and uniform thickness
MX144053A (en) * 1976-04-28 1981-08-25 Werz Furnier Sperrholz IMPROVEMENTS IN PROCEDURE AND DEVICE TO MANUFACTURE PROFILED BODIES OF PRESSED MASSES
US4158537A (en) * 1977-12-12 1979-06-19 United Technologies Corporation Selective loading of plastic molding compression molds
JPS5567438A (en) * 1978-11-15 1980-05-21 Matsushita Electric Works Ltd Preparation of flushplate decorated with pattern
US4221751A (en) * 1979-03-07 1980-09-09 Board Of Control Of Michigan Technological University Articles molded from papermill sludge
DE3045702A1 (en) * 1980-12-04 1982-07-08 Valentin 6503 Mainz-Kastel Schollmayer Moulding hollow wood chipboard receptacles - in mould with central spring-loaded retractable plunger in mould cavity base to provide uniform chip distribution

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US4629594A (en) 1986-12-16
EP0115552B1 (en) 1987-11-04
ATE30532T1 (en) 1987-11-15
ES8504551A1 (en) 1985-05-01
US4544344A (en) 1985-10-01
CA1221215A (en) 1987-05-05
AU2601984A (en) 1985-09-26
IN162424B (en) 1988-05-28
AU569499B2 (en) 1988-02-04
DE3374283D1 (en) 1987-12-10
ES529464A0 (en) 1985-05-01
JPS59165624A (en) 1984-09-18
EP0115552A1 (en) 1984-08-15

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